/* * This file is part of the libsigrok project. * * Copyright (C) 2013 Bert Vermeulen * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include #include #include #include #include #include #include "config.h" /* Needed for HAVE_LIBUSB_1_0 and others. */ #include "libsigrok.h" #include "libsigrok-internal.h" /** @cond PRIVATE */ #define LOG_PREFIX "hwdriver" /** @endcond */ /** * @file * * Hardware driver handling in libsigrok. */ /** * @defgroup grp_driver Hardware drivers * * Hardware driver handling in libsigrok. * * @{ */ static struct sr_config_info sr_config_info_data[] = { {SR_CONF_CONN, SR_T_CHAR, "conn", "Connection", NULL}, {SR_CONF_SERIALCOMM, SR_T_CHAR, "serialcomm", "Serial communication", NULL}, {SR_CONF_SAMPLERATE, SR_T_UINT64, "samplerate", "Sample rate", NULL}, {SR_CONF_CAPTURE_RATIO, SR_T_UINT64, "captureratio", "Pre-trigger capture ratio", NULL}, {SR_CONF_PATTERN_MODE, SR_T_CHAR, "pattern", "Pattern", NULL}, {SR_CONF_TRIGGER_TYPE, SR_T_CHAR, "triggertype", "Trigger types", NULL}, {SR_CONF_EXTERNAL_CLOCK, SR_T_BOOL, "external_clock", "External clock mode", NULL}, {SR_CONF_SWAP, SR_T_BOOL, "swap", "Swap channel order", NULL}, {SR_CONF_RLE, SR_T_BOOL, "rle", "Run Length Encoding", NULL}, {SR_CONF_TRIGGER_SLOPE, SR_T_CHAR, "triggerslope", "Trigger slope", NULL}, {SR_CONF_TRIGGER_SOURCE, SR_T_CHAR, "triggersource", "Trigger source", NULL}, {SR_CONF_HORIZ_TRIGGERPOS, SR_T_FLOAT, "horiz_triggerpos", "Horizontal trigger position", NULL}, {SR_CONF_BUFFERSIZE, SR_T_UINT64, "buffersize", "Buffer size", NULL}, {SR_CONF_TIMEBASE, SR_T_RATIONAL_PERIOD, "timebase", "Time base", NULL}, {SR_CONF_FILTER, SR_T_CHAR, "filter", "Filter targets", NULL}, {SR_CONF_VDIV, SR_T_RATIONAL_VOLT, "vdiv", "Volts/div", NULL}, {SR_CONF_COUPLING, SR_T_CHAR, "coupling", "Coupling", NULL}, {SR_CONF_DATALOG, SR_T_BOOL, "datalog", "Datalog", NULL}, {SR_CONF_SPL_WEIGHT_FREQ, SR_T_CHAR, "spl_weight_freq", "Sound pressure level frequency weighting", NULL}, {SR_CONF_SPL_WEIGHT_TIME, SR_T_CHAR, "spl_weight_time", "Sound pressure level time weighting", NULL}, {SR_CONF_HOLD_MAX, SR_T_BOOL, "hold_max", "Hold max", NULL}, {SR_CONF_HOLD_MIN, SR_T_BOOL, "hold_min", "Hold min", NULL}, {SR_CONF_SPL_MEASUREMENT_RANGE, SR_T_UINT64_RANGE, "spl_meas_range", "Sound pressure level measurement range", NULL}, {SR_CONF_VOLTAGE_THRESHOLD, SR_T_DOUBLE_RANGE, "voltage_threshold", "Voltage threshold", NULL }, {SR_CONF_POWER_OFF, SR_T_BOOL, "power_off", "Power off", NULL}, {SR_CONF_DATA_SOURCE, SR_T_CHAR, "data_source", "Data source", NULL}, {SR_CONF_NUM_LOGIC_CHANNELS, SR_T_INT32, "logic_channels", "Number of logic channels", NULL}, {SR_CONF_NUM_ANALOG_CHANNELS, SR_T_INT32, "analog_channels", "Number of analog channels", NULL}, {SR_CONF_OUTPUT_VOLTAGE, SR_T_FLOAT, "output_voltage", "Current output voltage", NULL}, {SR_CONF_OUTPUT_VOLTAGE_MAX, SR_T_FLOAT, "output_voltage_max", "Maximum output voltage", NULL}, {SR_CONF_OUTPUT_CURRENT, SR_T_FLOAT, "output_current", "Current output current", NULL}, {SR_CONF_OUTPUT_CURRENT_MAX, SR_T_FLOAT, "output_current_max", "Maximum output current", NULL}, {SR_CONF_OUTPUT_ENABLED, SR_T_BOOL, "output_enabled", "Output enabled", NULL}, {SR_CONF_OUTPUT_CHANNEL, SR_T_CHAR, "output_channel", "Output channel modes", NULL}, {SR_CONF_OVER_VOLTAGE_PROTECTION, SR_T_BOOL, "ovp", "Over-voltage protection", NULL}, {SR_CONF_OVER_CURRENT_PROTECTION, SR_T_BOOL, "ocp", "Over-current protection", NULL}, {SR_CONF_LIMIT_SAMPLES, SR_T_UINT64, "limit_samples", "Sample limit", NULL}, {SR_CONF_CLOCK_EDGE, SR_T_CHAR, "clock_edge", "Clock edge", NULL}, {0, 0, NULL, NULL, NULL}, }; /** @cond PRIVATE */ #ifdef HAVE_HW_APPA_55II extern SR_PRIV struct sr_dev_driver appa_55ii_driver_info; #endif #ifdef HAVE_HW_ATTEN_PPS3XXX extern SR_PRIV struct sr_dev_driver atten_pps3203_driver_info; #endif #ifdef HAVE_HW_BRYMEN_BM86X extern SR_PRIV struct sr_dev_driver brymen_bm86x_driver_info; #endif #ifdef HAVE_HW_BRYMEN_DMM extern SR_PRIV struct sr_dev_driver brymen_bm857_driver_info; #endif #ifdef HAVE_HW_CEM_DT_885X extern SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info; #endif #ifdef HAVE_HW_CENTER_3XX extern SR_PRIV struct sr_dev_driver center_309_driver_info; extern SR_PRIV struct sr_dev_driver voltcraft_k204_driver_info; #endif #ifdef HAVE_HW_COLEAD_SLM extern SR_PRIV struct sr_dev_driver colead_slm_driver_info; #endif #ifdef HAVE_HW_CONRAD_DIGI_35_CPU extern SR_PRIV struct sr_dev_driver conrad_digi_35_cpu_driver_info; #endif #ifdef HAVE_HW_DEMO extern SR_PRIV struct sr_dev_driver demo_driver_info; #endif #ifdef HAVE_HW_GMC_MH_1X_2X extern SR_PRIV struct sr_dev_driver gmc_mh_1x_2x_rs232_driver_info; extern SR_PRIV struct sr_dev_driver gmc_mh_2x_bd232_driver_info; #endif #ifdef HAVE_HW_HAMEG_HMO extern SR_PRIV struct sr_dev_driver hameg_hmo_driver_info; #endif #ifdef HAVE_HW_IKALOGIC_SCANALOGIC2 extern SR_PRIV struct sr_dev_driver ikalogic_scanalogic2_driver_info; #endif #ifdef HAVE_HW_IKALOGIC_SCANAPLUS extern SR_PRIV struct sr_dev_driver ikalogic_scanaplus_driver_info; #endif #ifdef HAVE_HW_KECHENG_KC_330B extern SR_PRIV struct sr_dev_driver kecheng_kc_330b_driver_info; #endif #ifdef HAVE_HW_LASCAR_EL_USB extern SR_PRIV struct sr_dev_driver lascar_el_usb_driver_info; #endif #ifdef HAVE_HW_MIC_985XX extern SR_PRIV struct sr_dev_driver mic_98581_driver_info; extern SR_PRIV struct sr_dev_driver mic_98583_driver_info; #endif #ifdef HAVE_HW_NORMA_DMM extern SR_PRIV struct sr_dev_driver norma_dmm_driver_info; #endif #ifdef HAVE_HW_OLS extern SR_PRIV struct sr_dev_driver ols_driver_info; #endif #ifdef HAVE_HW_RIGOL_DS extern SR_PRIV struct sr_dev_driver rigol_ds_driver_info; #endif #ifdef HAVE_HW_SALEAE_LOGIC16 extern SR_PRIV struct sr_dev_driver saleae_logic16_driver_info; #endif #ifdef HAVE_HW_SYSCLK_LWLA extern SR_PRIV struct sr_dev_driver sysclk_lwla_driver_info; #endif #ifdef HAVE_HW_TELEINFO extern SR_PRIV struct sr_dev_driver teleinfo_driver_info; #endif #ifdef HAVE_HW_TONDAJ_SL_814 extern SR_PRIV struct sr_dev_driver tondaj_sl_814_driver_info; #endif #ifdef HAVE_HW_UNI_T_UT32X extern SR_PRIV struct sr_dev_driver uni_t_ut32x_driver_info; #endif #ifdef HAVE_HW_VICTOR_DMM extern SR_PRIV struct sr_dev_driver victor_dmm_driver_info; #endif #ifdef HAVE_HW_ZEROPLUS_LOGIC_CUBE extern SR_PRIV struct sr_dev_driver zeroplus_logic_cube_driver_info; #endif #ifdef HAVE_HW_ASIX_SIGMA extern SR_PRIV struct sr_dev_driver asix_sigma_driver_info; #endif #ifdef HAVE_HW_CHRONOVU_LA extern SR_PRIV struct sr_dev_driver chronovu_la_driver_info; #endif #ifdef HAVE_HW_LINK_MSO19 extern SR_PRIV struct sr_dev_driver link_mso19_driver_info; #endif #ifdef HAVE_HW_ALSA extern SR_PRIV struct sr_dev_driver alsa_driver_info; #endif #ifdef HAVE_HW_FX2LAFW extern SR_PRIV struct sr_dev_driver fx2lafw_driver_info; #endif #ifdef HAVE_HW_HANTEK_DSO extern SR_PRIV struct sr_dev_driver hantek_dso_driver_info; #endif #ifdef HAVE_HW_AGILENT_DMM extern SR_PRIV struct sr_dev_driver agdmm_driver_info; #endif #ifdef HAVE_HW_FLUKE_DMM extern SR_PRIV struct sr_dev_driver flukedmm_driver_info; #endif #ifdef HAVE_HW_SERIAL_DMM extern SR_PRIV struct sr_dev_driver bbcgm_m2110_driver_info; extern SR_PRIV struct sr_dev_driver digitek_dt4000zc_driver_info; extern SR_PRIV struct sr_dev_driver tekpower_tp4000zc_driver_info; extern SR_PRIV struct sr_dev_driver metex_me31_driver_info; extern SR_PRIV struct sr_dev_driver peaktech_3410_driver_info; extern SR_PRIV struct sr_dev_driver mastech_mas345_driver_info; extern SR_PRIV struct sr_dev_driver va_va18b_driver_info; extern SR_PRIV struct sr_dev_driver va_va40b_driver_info; extern SR_PRIV struct sr_dev_driver metex_m3640d_driver_info; extern SR_PRIV struct sr_dev_driver metex_m4650cr_driver_info; extern SR_PRIV struct sr_dev_driver peaktech_4370_driver_info; extern SR_PRIV struct sr_dev_driver pce_pce_dm32_driver_info; extern SR_PRIV struct sr_dev_driver radioshack_22_168_driver_info; extern SR_PRIV struct sr_dev_driver radioshack_22_805_driver_info; extern SR_PRIV struct sr_dev_driver radioshack_22_812_driver_info; extern SR_PRIV struct sr_dev_driver tecpel_dmm_8061_ser_driver_info; extern SR_PRIV struct sr_dev_driver voltcraft_m3650cr_driver_info; extern SR_PRIV struct sr_dev_driver voltcraft_m3650d_driver_info; extern SR_PRIV struct sr_dev_driver voltcraft_m4650cr_driver_info; extern SR_PRIV struct sr_dev_driver voltcraft_me42_driver_info; extern SR_PRIV struct sr_dev_driver voltcraft_vc820_ser_driver_info; extern SR_PRIV struct sr_dev_driver voltcraft_vc830_ser_driver_info; extern SR_PRIV struct sr_dev_driver voltcraft_vc840_ser_driver_info; extern SR_PRIV struct sr_dev_driver uni_t_ut60a_ser_driver_info; extern SR_PRIV struct sr_dev_driver uni_t_ut60e_ser_driver_info; extern SR_PRIV struct sr_dev_driver uni_t_ut60g_ser_driver_info; extern SR_PRIV struct sr_dev_driver uni_t_ut61b_ser_driver_info; extern SR_PRIV struct sr_dev_driver uni_t_ut61c_ser_driver_info; extern SR_PRIV struct sr_dev_driver uni_t_ut61d_ser_driver_info; extern SR_PRIV struct sr_dev_driver uni_t_ut61e_ser_driver_info; extern SR_PRIV struct sr_dev_driver iso_tech_idm103n_driver_info; extern SR_PRIV struct sr_dev_driver tenma_72_7745_ser_driver_info; extern SR_PRIV struct sr_dev_driver tenma_72_7750_ser_driver_info; #endif #ifdef HAVE_HW_UNI_T_DMM extern SR_PRIV struct sr_dev_driver tecpel_dmm_8061_driver_info; extern SR_PRIV struct sr_dev_driver uni_t_ut60a_driver_info; extern SR_PRIV struct sr_dev_driver uni_t_ut60e_driver_info; extern SR_PRIV struct sr_dev_driver uni_t_ut60g_driver_info; extern SR_PRIV struct sr_dev_driver uni_t_ut61b_driver_info; extern SR_PRIV struct sr_dev_driver uni_t_ut61c_driver_info; extern SR_PRIV struct sr_dev_driver uni_t_ut61d_driver_info; extern SR_PRIV struct sr_dev_driver uni_t_ut61e_driver_info; extern SR_PRIV struct sr_dev_driver voltcraft_vc820_driver_info; extern SR_PRIV struct sr_dev_driver voltcraft_vc830_driver_info; extern SR_PRIV struct sr_dev_driver voltcraft_vc840_driver_info; extern SR_PRIV struct sr_dev_driver tenma_72_7745_driver_info; extern SR_PRIV struct sr_dev_driver tenma_72_7750_driver_info; #endif /** @endcond */ static struct sr_dev_driver *drivers_list[] = { #ifdef HAVE_HW_APPA_55II &appa_55ii_driver_info, #endif #ifdef HAVE_HW_ATTEN_PPS3XXX &atten_pps3203_driver_info, #endif #ifdef HAVE_HW_BRYMEN_BM86X &brymen_bm86x_driver_info, #endif #ifdef HAVE_HW_BRYMEN_DMM &brymen_bm857_driver_info, #endif #ifdef HAVE_HW_CEM_DT_885X &cem_dt_885x_driver_info, #endif #ifdef HAVE_HW_CENTER_3XX ¢er_309_driver_info, &voltcraft_k204_driver_info, #endif #ifdef HAVE_HW_COLEAD_SLM &colead_slm_driver_info, #endif #ifdef HAVE_HW_CONRAD_DIGI_35_CPU &conrad_digi_35_cpu_driver_info, #endif #ifdef HAVE_HW_DEMO &demo_driver_info, #endif #ifdef HAVE_HW_GMC_MH_1X_2X &gmc_mh_1x_2x_rs232_driver_info, &gmc_mh_2x_bd232_driver_info, #endif #ifdef HAVE_HW_HAMEG_HMO &hameg_hmo_driver_info, #endif #ifdef HAVE_HW_IKALOGIC_SCANALOGIC2 &ikalogic_scanalogic2_driver_info, #endif #ifdef HAVE_HW_IKALOGIC_SCANAPLUS &ikalogic_scanaplus_driver_info, #endif #ifdef HAVE_HW_KECHENG_KC_330B &kecheng_kc_330b_driver_info, #endif #ifdef HAVE_HW_LASCAR_EL_USB &lascar_el_usb_driver_info, #endif #ifdef HAVE_HW_MIC_985XX &mic_98581_driver_info, &mic_98583_driver_info, #endif #ifdef HAVE_HW_NORMA_DMM &norma_dmm_driver_info, #endif #ifdef HAVE_HW_OLS &ols_driver_info, #endif #ifdef HAVE_HW_RIGOL_DS &rigol_ds_driver_info, #endif #ifdef HAVE_HW_SALEAE_LOGIC16 &saleae_logic16_driver_info, #endif #ifdef HAVE_HW_SYSCLK_LWLA &sysclk_lwla_driver_info, #endif #ifdef HAVE_HW_TELEINFO &teleinfo_driver_info, #endif #ifdef HAVE_HW_TONDAJ_SL_814 &tondaj_sl_814_driver_info, #endif #ifdef HAVE_HW_UNI_T_UT32X &uni_t_ut32x_driver_info, #endif #ifdef HAVE_HW_VICTOR_DMM &victor_dmm_driver_info, #endif #ifdef HAVE_HW_ZEROPLUS_LOGIC_CUBE &zeroplus_logic_cube_driver_info, #endif #ifdef HAVE_HW_ASIX_SIGMA &asix_sigma_driver_info, #endif #ifdef HAVE_HW_CHRONOVU_LA &chronovu_la_driver_info, #endif #ifdef HAVE_HW_LINK_MSO19 &link_mso19_driver_info, #endif #ifdef HAVE_HW_ALSA &alsa_driver_info, #endif #ifdef HAVE_HW_FX2LAFW &fx2lafw_driver_info, #endif #ifdef HAVE_HW_HANTEK_DSO &hantek_dso_driver_info, #endif #ifdef HAVE_HW_AGILENT_DMM &agdmm_driver_info, #endif #ifdef HAVE_HW_FLUKE_DMM &flukedmm_driver_info, #endif #ifdef HAVE_HW_SERIAL_DMM &bbcgm_m2110_driver_info, &digitek_dt4000zc_driver_info, &tekpower_tp4000zc_driver_info, &metex_me31_driver_info, &peaktech_3410_driver_info, &mastech_mas345_driver_info, &va_va18b_driver_info, &va_va40b_driver_info, &metex_m3640d_driver_info, &metex_m4650cr_driver_info, &peaktech_4370_driver_info, &pce_pce_dm32_driver_info, &radioshack_22_168_driver_info, &radioshack_22_805_driver_info, &radioshack_22_812_driver_info, &tecpel_dmm_8061_ser_driver_info, &voltcraft_m3650cr_driver_info, &voltcraft_m3650d_driver_info, &voltcraft_m4650cr_driver_info, &voltcraft_me42_driver_info, &voltcraft_vc820_ser_driver_info, &voltcraft_vc830_ser_driver_info, &voltcraft_vc840_ser_driver_info, &uni_t_ut60a_ser_driver_info, &uni_t_ut60e_ser_driver_info, &uni_t_ut60g_ser_driver_info, &uni_t_ut61b_ser_driver_info, &uni_t_ut61c_ser_driver_info, &uni_t_ut61d_ser_driver_info, &uni_t_ut61e_ser_driver_info, &iso_tech_idm103n_driver_info, &tenma_72_7745_ser_driver_info, &tenma_72_7750_ser_driver_info, #endif #ifdef HAVE_HW_UNI_T_DMM &tecpel_dmm_8061_driver_info, &uni_t_ut60a_driver_info, &uni_t_ut60e_driver_info, &uni_t_ut60g_driver_info, &uni_t_ut61b_driver_info, &uni_t_ut61c_driver_info, &uni_t_ut61d_driver_info, &uni_t_ut61e_driver_info, &voltcraft_vc820_driver_info, &voltcraft_vc830_driver_info, &voltcraft_vc840_driver_info, &tenma_72_7745_driver_info, &tenma_72_7750_driver_info, #endif NULL, }; /** * Return the list of supported hardware drivers. * * @return Pointer to the NULL-terminated list of hardware driver pointers. */ SR_API struct sr_dev_driver **sr_driver_list(void) { return drivers_list; } /** * Initialize a hardware driver. * * This usually involves memory allocations and variable initializations * within the driver, but _not_ scanning for attached devices. * The API call sr_driver_scan() is used for that. * * @param ctx A libsigrok context object allocated by a previous call to * sr_init(). Must not be NULL. * @param driver The driver to initialize. This must be a pointer to one of * the entries returned by sr_driver_list(). Must not be NULL. * * @retval SR_OK Success * @retval SR_ERR_ARG Invalid parameter(s). * @retval SR_ERR_BUG Internal errors. * @retval other Another negative error code upon other errors. */ SR_API int sr_driver_init(struct sr_context *ctx, struct sr_dev_driver *driver) { int ret; if (!ctx) { sr_err("Invalid libsigrok context, can't initialize."); return SR_ERR_ARG; } if (!driver) { sr_err("Invalid driver, can't initialize."); return SR_ERR_ARG; } sr_spew("Initializing driver '%s'.", driver->name); if ((ret = driver->init(ctx)) < 0) sr_err("Failed to initialize the driver: %d.", ret); return ret; } /** * Tell a hardware driver to scan for devices. * * In addition to the detection, the devices that are found are also * initialized automatically. On some devices, this involves a firmware upload, * or other such measures. * * The order in which the system is scanned for devices is not specified. The * caller should not assume or rely on any specific order. * * Before calling sr_driver_scan(), the user must have previously initialized * the driver by calling sr_driver_init(). * * @param driver The driver that should scan. This must be a pointer to one of * the entries returned by sr_driver_list(). Must not be NULL. * @param options A list of 'struct sr_hwopt' options to pass to the driver's * scanner. Can be NULL/empty. * * @return A GSList * of 'struct sr_dev_inst', or NULL if no devices were * found (or errors were encountered). This list must be freed by the * caller using g_slist_free(), but without freeing the data pointed * to in the list. */ SR_API GSList *sr_driver_scan(struct sr_dev_driver *driver, GSList *options) { GSList *l; if (!driver) { sr_err("Invalid driver, can't scan for devices."); return NULL; } if (!driver->priv) { sr_err("Driver not initialized, can't scan for devices."); return NULL; } l = driver->scan(options); sr_spew("Scan of '%s' found %d devices.", driver->name, g_slist_length(l)); return l; } /** Call driver cleanup function for all drivers. * @private */ SR_PRIV void sr_hw_cleanup_all(void) { int i; struct sr_dev_driver **drivers; drivers = sr_driver_list(); for (i = 0; drivers[i]; i++) { if (drivers[i]->cleanup) drivers[i]->cleanup(); } } /** Allocate struct sr_config. * A floating reference can be passed in for data. * @private */ SR_PRIV struct sr_config *sr_config_new(int key, GVariant *data) { struct sr_config *src; if (!(src = g_try_malloc(sizeof(struct sr_config)))) return NULL; src->key = key; src->data = g_variant_ref_sink(data); return src; } /** Free struct sr_config. * @private */ SR_PRIV void sr_config_free(struct sr_config *src) { if (!src || !src->data) { sr_err("%s: invalid data!", __func__); return; } g_variant_unref(src->data); g_free(src); } /** * Query value of a configuration key at the given driver or device instance. * * @param[in] driver The sr_dev_driver struct to query. * @param[in] sdi (optional) If the key is specific to a device, this must * contain a pointer to the struct sr_dev_inst to be checked. * Otherwise it must be NULL. * @param[in] cg The channel group on the device for which to list the * values, or NULL. * @param[in] key The configuration key (SR_CONF_*). * @param[in,out] data Pointer to a GVariant where the value will be stored. * Must not be NULL. The caller is given ownership of the GVariant * and must thus decrease the refcount after use. However if * this function returns an error code, the field should be * considered unused, and should not be unreferenced. * * @retval SR_OK Success. * @retval SR_ERR Error. * @retval SR_ERR_ARG The driver doesn't know that key, but this is not to be * interpreted as an error by the caller; merely as an indication * that it's not applicable. */ SR_API int sr_config_get(const struct sr_dev_driver *driver, const struct sr_dev_inst *sdi, const struct sr_channel_group *cg, int key, GVariant **data) { int ret; if (!driver || !data) return SR_ERR; if (!driver->config_get) return SR_ERR_ARG; if ((ret = driver->config_get(key, data, sdi, cg)) == SR_OK) { /* Got a floating reference from the driver. Sink it here, * caller will need to unref when done with it. */ g_variant_ref_sink(*data); } return ret; } /** * Set value of a configuration key in a device instance. * * @param[in] sdi The device instance. * @param[in] cg The channel group on the device for which to list the * values, or NULL. * @param[in] key The configuration key (SR_CONF_*). * @param data The new value for the key, as a GVariant with GVariantType * appropriate to that key. A floating reference can be passed * in; its refcount will be sunk and unreferenced after use. * * @retval SR_OK Success. * @retval SR_ERR Error. * @retval SR_ERR_ARG The driver doesn't know that key, but this is not to be * interpreted as an error by the caller; merely as an indication * that it's not applicable. */ SR_API int sr_config_set(const struct sr_dev_inst *sdi, const struct sr_channel_group *cg, int key, GVariant *data) { int ret; g_variant_ref_sink(data); if (!sdi || !sdi->driver || !data) ret = SR_ERR; else if (!sdi->driver->config_set) ret = SR_ERR_ARG; else ret = sdi->driver->config_set(key, data, sdi, cg); g_variant_unref(data); return ret; } /** * Apply configuration settings to the device hardware. * * @param sdi The device instance. * * @return SR_OK upon success or SR_ERR in case of error. */ SR_API int sr_config_commit(const struct sr_dev_inst *sdi) { int ret; if (!sdi || !sdi->driver) ret = SR_ERR; else if (!sdi->driver->config_commit) ret = SR_OK; else ret = sdi->driver->config_commit(sdi); return ret; } /** * List all possible values for a configuration key. * * @param[in] driver The sr_dev_driver struct to query. * @param[in] sdi (optional) If the key is specific to a device, this must * contain a pointer to the struct sr_dev_inst to be checked. * @param[in] cg The channel group on the device for which to list the * values, or NULL. * @param[in] key The configuration key (SR_CONF_*). * @param[in,out] data A pointer to a GVariant where the list will be stored. * The caller is given ownership of the GVariant and must thus * unref the GVariant after use. However if this function * returns an error code, the field should be considered * unused, and should not be unreferenced. * * @retval SR_OK Success. * @retval SR_ERR Error. * @retval SR_ERR_ARG The driver doesn't know that key, but this is not to be * interpreted as an error by the caller; merely as an indication * that it's not applicable. */ SR_API int sr_config_list(const struct sr_dev_driver *driver, const struct sr_dev_inst *sdi, const struct sr_channel_group *cg, int key, GVariant **data) { int ret; if (!driver || !data) ret = SR_ERR; else if (!driver->config_list) ret = SR_ERR_ARG; else if ((ret = driver->config_list(key, data, sdi, cg)) == SR_OK) g_variant_ref_sink(*data); return ret; } /** * Get information about a configuration key, by key. * * @param[in] key The configuration key. * * @return A pointer to a struct sr_config_info, or NULL if the key * was not found. */ SR_API const struct sr_config_info *sr_config_info_get(int key) { int i; for (i = 0; sr_config_info_data[i].key; i++) { if (sr_config_info_data[i].key == key) return &sr_config_info_data[i]; } return NULL; } /** * Get information about a configuration key, by name. * * @param[in] optname The configuration key. * * @return A pointer to a struct sr_config_info, or NULL if the key * was not found. */ SR_API const struct sr_config_info *sr_config_info_name_get(const char *optname) { int i; for (i = 0; sr_config_info_data[i].key; i++) { if (!strcmp(sr_config_info_data[i].id, optname)) return &sr_config_info_data[i]; } return NULL; } /* Unnecessary level of indirection follows. */ /** @private * @see sr_session_source_remove() */ SR_PRIV int sr_source_remove(int fd) { return sr_session_source_remove(fd); } /** @private * @see sr_session_source_add() */ SR_PRIV int sr_source_add(int fd, int events, int timeout, sr_receive_data_callback_t cb, void *cb_data) { return sr_session_source_add(fd, events, timeout, cb, cb_data); } /** @} */